Absorbent pad



J. C. BAKER.

' ABSORBENT PAD.

APPLICATION FILED 1AN.2I, 1920.

1,370,081. Patented Mir. 1, 1921.

UNlTED STATES PATENT oF'FicE.

Application filed January 21, 1920; Serial No.

, To all whom it may concern:

. BAKER, a citizen of the Be it known that I JOSEPH CHENEY United States, and resident of Syracuse in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Absorbent Pads, of which the following is a specification.

This invention relates to absorbent cartridges adapted for use in sanitary napkins, surgical bandages or for any other purpose where such pads or bodies are employed; and the object of this invention is to con' struct this article in such form that it ma be manufactured very rapidly at the mimmum expense and at the same time possess' maximum efficiency as an absorbent pad.

A further object of the invention is the construction of thiscartridge or pad with a shell or envelop of perforated paper in tubular form which is filled with shredded or' I finely-divided absorbent material whereby the filling may be rapidly deposited in the tube. Then again by the employment of a readily-destructible envelop such as paper, and filling the same with such finely-divided absorbent material as shredded wood pulp or the like, the whole pad will disintegrate and the envelop with its contcntsmay readily pass down the soil pipe if deposited in a toilet, without any possibility of clogging the same.

With these and other objects in view, the invention consists of certain novel features of" construction, as willbe more fully described, and particularly-pointed out in the appended claims.

In the accompanying drawing:

Figure l is a side elevation illustrating one means. of filling my improved tubular form of absorbent pad which is preferably mode initially in a tube of considerable length. I

Fig. 2 shows a length of filled tubing from which the separate bodies or pads are constructed.

Fig. 3- illustrates the filled tubesas having been rolled or flattened down into an elongated pad having comparatlvely flat sides.

Fig. 4 shows a single pad or body which has been severed or cut out from the fiat strip, with its ends sealed. Fig. 5- shows the body portion as secured within the folds of an outer cloth or cover-.

ing.

Specification of Letters Patent.

escapes through the Patented Mar. 1, 1921.

With reference to the drawing, l0 designates an elongated body preferably made of thm, soft but tough paper such as tissue paper or the like, the walls of which are perforated as at 11.

By perforating the walls of this tubular casing I am enabled to fill the same with a I finely-divided absorbent material such as shredded wood pulp or the like by means of a blower 12, into the hopper 13 of which this short staple material is fed.

To accomplish this filling operation I first close the outer end 14 of the tube and as the air and the filling are forced therein the air filling in the tube. If there were no openngs inthe paper tube for theescape of air, it would of course be impossible to deposit the material therein solidly and compactly by means of a blower. After the tube is filled remove it from the blower and preferably flatten the side as at 15 by rolling or pressing into substantially the form shown in Fig. 3. I then cut this elongated body at the designating points 16 forming relatively-short body portions or pads of absorbent material.

openings leaving the In some cases I then deposit these short body portions between the folds of a fabric, as illustrated in Fig. 5, and in still other cases I press together and seal the opposite ends 18 of these pads in which form it may be used for a variety of purposes where absorbent pads are require The perforations in this body in addition to permittingv the air to escape upon filling the tube by a blower, also permit the moisture to more readily pass through the envelop to the absorbent material within.

These perforations or openings in the body, envelop or casing, may be of any size or shape but are preferably of such a size to permit the ready escape of air and efl'ectively retain the absorbent material in the tube.

This paper tube serves to effectually retain the absorbent material and. prevent the same from spreading so that an unbroken absorbent surface is always present.

By my improved construction of tubular paper container I am enabled to fill the same mechanically with absorbent material thus overcoming the necessity of a hand-filling operation, and so greatly reduce the expense of producing these absorbent pads.

, After using this absorbent pad it may be shaken out as a whole from the cloth or paper cover and be disposed of very readily tainer not readily destructible such as paper.

The foregoing description is directed solely toward the construction illustrated,

but I desire it to be understood that 'I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In a sanitary bandage, a separate pad therefor, comprising a perforated tubular paper envelop having 'a filling of finely divided readily disintegratable absorbent material, and a casing of textile fabric in which said envelop is removably held.

, 2. A removable pad for sanitary bandage comprising an envelop formed of a length 0 paper tubingflattened on its sides and havingperforated outer walls, said envelop being filled with absorbent material, and the ends of said envelop being sealed to retain the filling therein.

In testimon whereof I afiix m signature.

J O EPH CHENEY AKER. 

